Dumping-scow.



No. 721,333. PATENTED MAR. 3, 19.03. W. Y. GAMBEE.

DUMPING SCOW.

APPLICATION FILED snr'T. 24.1202.

No MODEL.

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UNITED STATES i WILLIAM Y. GAMBEE,

PATENT OEEICE.

OF NEW YORK, N. Y.\

DUMPlNG-SCOW.

SPECIFICATION forming part of Letters Patent No. 721,883, dated March 3, 1903. Application iiled September 24,1902. Serial No. 124,623. (No model.)

To a/ZZ whom it may concern,.-

Be it known that I, WILLIAM Y. GAMBEE,

arranged in a row, with improved means forl opening and closing the doors of such pockets. Heretofore the raising and lowering devices have generally been located within the pockets and have therefore been in the way of the discharge of the load. They have also required the use of braces to support the walls of the pocket, owing to the fact that the strain of raising theheavy doors, which form the bottom of the pocket, tends to draw the walls of the pocket together.

The object of my invention is to do away with these braces and all other obstructions to the speedy discharge of thel pocket. -Y To that end I form the end walls of the pocket hollow and place the raising and lowering devices inside such walls. I also arrange these raising and lowering devices so that the strain caused by the weight of the doors is sustained by the end walls, which thereby prevent any tendency in the side walls to collapse.

In the accompanying drawings I haveshown one set of raising and lowering devices as arranged at one end of one of the pockets, it being understood that a similar device is provided at each end of each of the pockets which the scow has.

Figure 1 is a section looking from line 1 l of Fig. 2, theinner wall being removed. Fig. 2 is a section on line 2 2 of Fig. l.

Same letters indicate similar parts in the diierent figures.

A is a pocket of usual construction forming part of the dumping-scow, (notv shown,) having the side walls ct a and end walls b. 'lhe end walls are hollow, as shown in Fig. 2, and in the space between the inner plate c and outer plate (Hof which said wall is composed, are arranged the raising and lowering devices. The pocket is provided with the usual doors e e, which overlap, as shown at f, and are hinged to the bottom of the walls a a, as shown at g g. The doors are shown closed in full lines in Fig. 1 and open in dotted lines. On the inner face of the wall-plates c d I have provided an inclined track, consisting of the rails h @'upon which run the earsjj. The rails i are secured to the wall-plate d by suitable rivets (not shown) or otherwise, and

extend from near the bottom of the wall to a point at any convenient height on the face of the plate to provide an easy run for the cars jj from their descent. The rails h h are similarly located on the other wall-plate c,and a portion ofthe car j projects downward to the space between the rails h i and is attached to one of the doors e e by a cable or chain Z. The car j is provided with a flange k, located beneath the rails to prevent its jumping the track, and with the wheels m'fm, running upon the rail. The position of the car when the doors are closed is shown in full lines in Fg.1 and is shown in dotted lines when the doors are open.

At convenient places upon the wall l) are arranged the grooved rollers fn. n, over which the car-chains o o pass. The lower end of each chain is attached to a carj, and the free end is turned around a drum p of usual construction. The means for winding or releasing these chains to raise or lower the Vdoors are of usual construction, consisting of the drum p and worm-gear q, mounted upon the deck fr and turned by the worm s. These devices are mounted upon the deck of the scow in the usual way, there being one set of such devices at the end of each pocket and all driven from the engine or other source of power. (Not shown.)

It will be readily understood that the weight of the doors is at all times supported by the end walls b and that the strain caused by that weight is primarily at all times a direct downward strain. The excess only of the 'strain which is not supported by the wall b through the tracks h e' is exerted upon the drum p and that within the line of the wall b, so that the said wall acts in this regard as a permanent brace for the side walls.

I claim- 1. A dumping-scow provided with suitable pockets the bottom doors of which are supported byraisingandloweringdevices mountl other and extending from the center line of ed upon the end Walls of said pockets and said walls to the opposite lower corners, cars guided by rollers moving on inclined tracks adapted to move along said track and means whereby the strain in raising and lowering substantiallyas described connected Withsaid 5 said doors falls within the Vertical and horicars whereby the doors of said pocket are r 5 zontal lines of said Walls substantially as set raised or lowered as desired.

forth. WILLIAM Y. GAMBEE.

2. A dumping-scow provided with suitable Vitnesses: pockets with hollow end walls, tracks located W. P. PREBLE, Jr., 1o within said hollow walls inclined to each MORRIS A. MCCARTHY. 

